Jamesbrittenia plant named ‘DJAMGOL’

ABSTRACT

A new and distinct cultivar of  Jamesbrittenia  plant named ‘DJAMGOL’ is disclosed, characterized by stable, bright yellow flowers, and semi-erect habit. Plants are less sensitive to foliar disease. The new variety is a  Jamesbrittenia , normally produced as an outdoor garden or container plant.

Latin name of the genus and species: Jamesbrittenia breviflora xgrandiflora.

Variety denomination: ‘DJAMGOL’.

BACKGROUND OF THE INVENTION

The new Jamesbrittenia cultivar is a product of a planned breedingprogram conducted by the inventor, Gavriel Danziger, in Moshav MishmarHashiva, Israel. The objective of the breeding program was to producenew Jamesbrittenia varieties for ornamental commercial applications. Thecrossing resulting in this new variety was made during Spring of 2014.

The seed parent is the unpatented, unnamed proprietary Jamesbrittenia.The pollen parent is different unpatented Jamesbrittenia ‘ST-11-2359’.The pollen parent is the unpatented Jamesbrittenia ‘ST-12-2364’. The newvariety was discovered in Spring of 2015 by the inventor in a group ofseedlings resulting from the 2014 crossing, in a research greenhouse inMoshav Mishmar Hashiva, Israel.

Asexual reproduction of the new cultivar was performed by vegetativecuttings. This was first performed at a research greenhouse in MoshavMishmar Hashiva, Israel in Spring of 2015 and has shown that the uniquefeatures of this cultivar are stable and reproduced true to type in morethan 20 successive generations.

SUMMARY OF THE INVENTION

The cultivar ‘DJAMGOL’ has not been observed under all possibleenvironmental conditions. The phenotype may vary somewhat withvariations in environment such as temperature, day length, and lightintensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘DJAMGOL’ These characteristics incombination distinguish ‘DJAMGOL’ as a new and distinct Jamesbritteniacultivar:

-   -   1 Bright yellow flower color.    -   2. More stable flower color.    -   3. Less sensitivity to foliar disease (Botrytis).

Plants of the new cultivar ‘DJAMGOL’ are similar to plants of the seedparent in most horticultural characteristics, however, plants of the newcultivar ‘DJAMGOL’ differ in the following;

-   -   1. The new variety has yellow flowers, while the seed parent has        magenta flowers.    -   2. The new variety has more stable flower color than the seed        parent.

Plants of the new cultivar ‘DJAMGOL’ are similar to plants of the pollenparent in most horticultural characteristics, however, plants of the newcultivar ‘DJAMGOL’ differ in the following;

-   -   1. The new variety has a brighter flower color than the pollen        parent.    -   2. The new variety has more stable flower color than the pollen        parent.    -   3. The new variety is less sensitive to foliar disease than the        pollen parent.

COMMERCIAL COMPARISON

Plants of the new cultivar ‘DJAMGOL’ are comparable to the patentedcommercial variety Jamesbrittenia breviflora ‘Summer Dream LightYellow’, unpatented. The varieties are similar in most horticulturalcharacteristics; however, the new variety ‘DJAMGOL’ differs in thefollowing:

-   -   1. The new variety has brighter flowers than this comparator.    -   2. The new variety has larger flowers than this comparator.    -   3. The new variety has heavier foliage than this comparator.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photograph in FIG. 1 illustrates in full color atypical plant of ‘DJAMGOL’ grown in a greenhouse, in a 20 cm pot. Age ofthe plant photographed is approximately 2 months old from a rootedcutting.

FIG. 2 illustrates a close up of a typical flower.

The photographs were taken using conventional techniques and althoughcolors may appear different from actual colors due to light reflectanceit is as accurate as possible by conventional photographic techniques.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The RoyalHorticultural Society Mini Colour Chart 2001 except where general termsof ordinary dictionary significance are used. The following observationsand measurements describe ‘DJAMGOL’ plants grown February to July inmoderate climate in a greenhouse, in Moshav Mishmar Hashiva, Israel. Thegrowing temperature ranged from 20° C. to 30° C. during the day and from12° C. to 16° C. during the night. General light conditions are normalsunlight and numerical values represent averages of typical plant types.

-   Botanical classification: Jamesbrittenia breviflora x grandiflora    ‘DJAMGOL’.

PROPAGATION

-   Time to initiate roots: 16-18 days at 22-26° C.-   Root description: Roots quickly with a fine but robust root system.

PLANT

-   Age of plant described: Approximately 60 days from rooted cutting.-   Container size of the plant described: 20 cm.-   Growth habit: Semi-erect.-   Height: 40 cm.-   Plant spread: 60 cm.-   Growth rate: Early.-   Characteristics of primary lateral branches:    -   -   Quantity.—6-7.        -   Form.—Circular.        -   Diameter.—0.38 cm.        -   Average length range.—40-50 cm.        -   Color.—RHS Yellow-Green 143D.        -   Texture.—Smooth, slightly pubescent.        -   Strength.—Brittle.-   Internode length: 2.5 cm.

FOLIAGE

-   Leaf:    -   -   Arrangement.—Alternate.        -   Quantity.—Approximately 60 per branch.        -   Average length.—1.5 cm.        -   Average width.—1.25 cm.        -   Apex.—Blunt.        -   Margin.—Serrate.        -   Texture of top surface.—Slightly pubescent.        -   Texture of bottom surface.—Slightly pubescent.        -   Color.—Young foliage upper side: RHS Yellow-Green 147B.            Young foliage under side: RHS Yellow-Green 146B. Mature            foliage upper side: RHS Yellow-Green 147B. Mature foliage            under side: RHS Yellow-Green 146B.        -   Venation.—Type: Pinnate. Venation color upper side: RHS            Yellow-Green 147B. Venation color under side: RHS            Yellow-Green 146B.        -   Petiole.—Length: About 0.8 cm. Diameter: About 0.1 cm.            Color: RHS Yellow-Green 146D.        -   Texture.—Pubescent.

FLOWER

-   Natural flowering season: Spring.-   Days to flowering from rooted cutting: 6-8 weeks.-   Inflorescence and flower type and habit: Single, semi-trailing,    upright.-   Rate of flower opening: 2-3 days from bud to fully opened flower.-   Flower longevity on plant: 6-7 days.-   Persistent or self-cleaning: Self-cleaning.-   Bud:    -   -   Length.—About 1 cm.        -   Diameter.—About 0.6 cm.        -   Color.—RHS Yellow-Green 146C.-   Flower size:    -   -   Diameter.—About 2 cm.        -   Length.—About 1.2 cm.        -   Corolla tube diameter.—About 0.2 cm.-   Corolla/petals:    -   -   Arrangement.—Flat.        -   Lobe length.—About 0.5 cm.        -   Lobe width.—About 0.8 cm.        -   Quantity.—5.        -   Texture.—Smooth.        -   Lobe apex.—Blunt.        -   Margin.—Smooth.-   Color:    -   -   When opening.—Upper surface: RHS Yellow 15A. Lower surface:            RHS Yellow 16D.        -   Fully opened.—Upper surface: RHS Yellow 15B. Lower surface:            RHS Yellow 16D.-   Calyx/sepals:    -   -   Quantity per flower.—5.        -   Length.—About 0.5 cm.        -   Width.—About 0.15 cm.        -   Apex.—Blunt.        -   Base.—Slightly tapered.        -   Margin.—Smooth.        -   Texture.—Pubescent.        -   Color.—Upper Surface: RHS Yellow-Green 143A. Lower Surface:            RHS Yellow-Green 143B.-   Peduncle: None.-   Pedicel:    -   -   Length.—Approximately 1.7 cm.        -   Diameter.—Approximately 0.1 cm.        -   Color.—Near RHS Yellow-Green 144A.        -   Orientation.—Alternate.        -   Pubescence.—Pubescent.-   Fragrance: None.

REPRODUCTIVE ORGANS

-   Stamens:    -   -   Number.—5.        -   Filament length.—Approximately 0.9 cm.-   Anthers:    -   -   Shape.—Oblong.        -   Length.—Approximately 0.1 cm.        -   Color.—RHS Yellow 13A.        -   Pollen.—Color: RHS Yellow 13A. Quantity: Plentiful.-   Pistil:    -   -   Number.—1.        -   Length.—About 0.9 cm.        -   Style.—Not discernable.        -   Stigma.—Not discernable.

OTHER CHARACTERISTICS

-   Seeds and fruits: Seeds very small, round and black in color.-   Disease/pest resistance: Generally is not sensitive to pests but    under high humidity Botrytis can occur.-   Temperature tolerance: Good tolerance to high temperatures with only    slight fading of the flower color.

What is claimed is:
 1. A new and distinct cultivar of Jamesbritteniaplant named ‘DJAMGOL’ as herein illustrated and described.